It's realistic, at least. And much less gross than 2019. And if you dislike Gibson and Bailey there are a dozen other players of similar quality or cost who you can sub in, at your preference. Homer had a surprisingly strong season though.
Also, the opener could easily be much more effective than one or two of the traditional starters above the opener slot in the Blue Jays SP hierarchy.
Yes, of course we'd all like a 1 and a 2 with more ultimate upside, like Zach Wheeler or Dallas Keuchel. Perhaps someone like Keuchel would come to Toronto on a reasonable deal. Maybe a grizzled veteran like Hamels or Rich Hill could be enticed to Toronto.